Where's the Beef?

Mississippi recently passed a law that has the effect of banning terms like "veggie burger." It's easy to imagine other states passing similar laws. From an environmental view, that's problematic, because beef in particular is connected with much higher greenhouse gas emissions than plant products. It's not just the methane from cow-burps, it's also all the carbon emissions connected with growing corn to feed the cattle. But in addition to its environmental drawbacks, the Mississippi law is subject to severe constitutional problems.